2022
DOI: 10.1088/1361-6463/ac8e77
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Tuning the interfacial Dzyaloshinskii–Moriya interaction in perpendicularly magnetized CoFeB system

Abstract: Magnetic field driven domain-wall motion in the creep regime is investigated with Kerr microscopy in out-of-plane magnetized as deposited and annealed Ta/Pt/CoFeB/Pt multilayers. In addition to the effect of thermal annealing on the quasi-static magnetic properties of Ta (3 nm)/Pt (3 nm)/CoFeB (tCoFeB nm)/Pt (2 nm) film stacks where tCoFeB = {0.72, 0.93}, the study focuses on the modified interfacial Dzyaloshinskii-Moriya interaction (iDMI) that governs the dynamics of chiral domain walls. The strength of the … Show more

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